Study on Preventing Urban Constructed Facilities from Earthquake Disaster

城市建筑设施防震灾害研究

• 批准号: 61550411
• 负责人: KAWANO Masahiro
• 金额: $ 0.9万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61550411/
• 关键词: Earthquake damage; Strong ground motion; Fault mechanism; 不整形地盤

The main purpose of the research project is to obtain the methods of preventing the building structure and constructed facilities from destructive earthquake disaster. This project comprises 3 sub-project.(1) The study on the characteristics of the earthquake ground motions through layers, (2) the study on the associated structure damage of the building, and (3) the study on the effect o irregular soil structures on response spectra.The characteristics of the earthquake ground motion near the fault are obtained from the simultaneous observation at many points and the motions excited by the vibration generator are measured along the survey line having underground irregular geologic structures. These observational and experimental results are compared with the predicted theoretical values.It is found from observational and theoretical results that the amplitudes and peak frequencies of the ground motion near the fault are variable depending on relative positions to the presumed discontinuous geologic line. In the case of vibration tests, the velocity responses of measure points with underground irregularities are found to be corresponded with the calculated values.The effect of topography on surface motion is investigated in the case of incident SH wave. Several types of buried valley topography are analyzed. The method of boundary integral equation is applied for numerical integration of the field equation of motion. The degree of accuracy of the method is examined by comparing the response of ground motion calculated by this method with that of exact solution for several ground models.

研究项目的主要目的是获得建筑物结构和已建设施免受破坏性地震灾害的方法。本项目包括3个子项目。(1)层间地震地震动特征研究；(2)建筑物相关结构损伤研究；(3)不规则土体结构对反应谱的影响研究。通过多点同时观测得到断层附近的地震地面运动特征，并沿具有地下不规则地质构造的测量线测量振动发生器激发的运动。这些观测和实验结果与预测的理论值进行了比较。从观测和理论结果中发现，断层附近地震动的振幅和峰值频率随假定的不连续地质线的相对位置而变化。在振动试验中，发现地下不规则测点的速度响应与计算值相符合。在SH波入射的情况下，研究了地形对地表运动的影响。分析了几种类型的隐谷地形。采用边界积分方程法对运动场方程进行数值积分。通过将该方法计算的地震动响应与几种地面模型的精确解进行比较，验证了该方法的精度。

项目成果

河野允宏,立川雅司,桜井隆喜: 日本建築学会大会学術講演梗概集(構造系). 405-408 (1986)

Masahiro Kono、Masashi Tachikawa、Takayoshi Sakurai：日本建筑学会会议学术讲座摘要（结构系统）405-408（1986）。

M. Kawano, T. Onogi and A. Funakoshi: "Response characteristics of soil-structure interaction system to seismic ground motion with consideration of uncertain soil property and source mechanism" Proceedings of 7th Japan Earthquake Engineering Symposium. 10

M. Kawano、T. Onogi 和 A. Funakoshi：“考虑不确定土壤性质和震源机制的土壤-结构相互作用系统对地震动的响应特征”第七届日本地震工程学会论文集。

M. Kawano and T. Kobori: "Stochastic seismic response sensitivity of soil-structure interaction system" STOCHASTIC APPROACHES IN EARTHQUAKE ENGINEERING. 139-156 (1987)

M. Kawano 和 T. Kobori：“土壤-结构相互作用系统的随机地震响应敏感性”地震工程中的随机方法。

河野允宏,小堀鐸二,土肥博,佐藤二三男: 日本建築学会近畿支部研究報告集(構造系). 253-256 (1986)

Masahiro Kono、Takuji Kobori、Hiroshi Doi、Fumio Sato：日本建筑学会近畿分会研究报告（结构）253-256（1986）。

河野允宏,船越淳久,横地玉和: 日本建築学会大会学術講演梗概集(構造I). 551-552 (1987)

Masahiro Kono、Atsuhisa Funakoshi、Tamakazu Yokochi：日本建筑学会会议学术讲座摘要（结构 I）551-552（1987）。